20477820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:136

約数の個数: 192

約数和(自身を含む): 69672960

約数和(自身を除く): 49195140

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 19, 20, 22, 23, 30, 33, 38, 44, 46, 55, 57, 60, 66, 69, 71, 76, 92, 95, 110, 114, 115, 132, 138, 142, 165, 190, 209, 213, 220, 228, 230, 253, 276, 284, 285, 330, 345, 355, 380, 418, 426, 437, 460, 506, 570, 627, 660, 690, 710, 759, 781, 836, 852, 874, 1012, 1045, 1065, 1140, 1254, 1265, 1311, 1349, 1380, 1420, 1518, 1562, 1633, 1748, 2090, 2130, 2185, 2343, 2508, 2530, 2622, 2698, 3036, 3124, 3135, 3266, 3795, 3905, 4047, 4180, 4260, 4370, 4686, 4807, 4899, 5060, 5244, 5396, 6270, 6532, 6555, 6745, 7590, 7810, 8094, 8165, 8740, 9372, 9614, 9798, 11715, 12540, 13110, 13490, 14421, 14839, 15180, 15620, 16188, 16330, 17963, 19228, 19596, 20235, 23430, 24035, 24495, 26220, 26980, 28842, 29678, 31027, 32660, 35926, 40470, 44517, 46860, 48070, 48990, 53889, 57684, 59356, 62054, 71852, 72105, 74195, 80940, 89034, 89815, 93081, 96140, 97980, 107778, 124108, 144210, 148390, 155135, 178068, 179630, 186162, 215556, 222585, 269445, 288420, 296780, 310270, 341297, 359260, 372324, 445170, 465405, 538890, 620540, 682594, 890340, 930810, 1023891, 1077780, 1365188, 1706485, 1861620, 2047782, 3412970, 4095564, 5119455, 6825940, 10238910, 20477820]

約数ペア:

[(1, 20477820), (2, 10238910), (3, 6825940), (4, 5119455), (5, 4095564), (6, 3412970), (10, 2047782), (11, 1861620), (12, 1706485), (15, 1365188), (19, 1077780), (20, 1023891), (22, 930810), (23, 890340), (30, 682594), (33, 620540), (38, 538890), (44, 465405), (46, 445170), (55, 372324), (57, 359260), (60, 341297), (66, 310270), (69, 296780), (71, 288420), (76, 269445), (92, 222585), (95, 215556), (110, 186162), (114, 179630), (115, 178068), (132, 155135), (138, 148390), (142, 144210), (165, 124108), (190, 107778), (209, 97980), (213, 96140), (220, 93081), (228, 89815), (230, 89034), (253, 80940), (276, 74195), (284, 72105), (285, 71852), (330, 62054), (345, 59356), (355, 57684), (380, 53889), (418, 48990), (426, 48070), (437, 46860), (460, 44517), (506, 40470), (570, 35926), (627, 32660), (660, 31027), (690, 29678), (710, 28842), (759, 26980), (781, 26220), (836, 24495), (852, 24035), (874, 23430), (1012, 20235), (1045, 19596), (1065, 19228), (1140, 17963), (1254, 16330), (1265, 16188), (1311, 15620), (1349, 15180), (1380, 14839), (1420, 14421), (1518, 13490), (1562, 13110), (1633, 12540), (1748, 11715), (2090, 9798), (2130, 9614), (2185, 9372), (2343, 8740), (2508, 8165), (2530, 8094), (2622, 7810), (2698, 7590), (3036, 6745), (3124, 6555), (3135, 6532), (3266, 6270), (3795, 5396), (3905, 5244), (4047, 5060), (4180, 4899), (4260, 4807), (4370, 4686)]